6 May
2011
6 May
'11
4:49 p.m.
Robert Munafo:
Is there a database of polyominoes somewhere in text format so I can figure out which of the 369 I am missing?
The 369 free octominoes are pictured here: http://upload.wikimedia.org/wikipedia/commons/a/ac/All_369_free_octominoes.s...